[While Lisa tries to raise the class's consciousness about global warming, Bart steals two walkie-talkies from the ranger's office, sneaks up behind her, and puts one in her backpack.]
Lisa: Listen, people! How can you stand there eating snacks and being children when the world's glaciers are vanishing? We have to do something about it! Glaciers are nature's alarm clock. And it's time for us to wake up. Can there be any doubt that the culprit is greenhouse gas produced by man?
[A farting sound comes from behind Lisa. The culprit is Bart, who is making the noise into the other walkie-talkie. The class laughs.]
Bart: The only gas is coming from Lisa's butt! [The class laughs some more.]
Lisa: People, please! I am talking about toxic vapors. [There's another farting sound, and the class laughs again.]
Lisa: Emanations! [Another farting sound, and more laughter.]
Lisa: Miasmas! [There's another farting sound. But before the class has a chance to laugh, another voice comes over the walkie-talkie.]
Chief Wiggum: [on walkie-talkie] Hey, whoever's doing that, get off the frequency. We're combing the woods. There's a killer loose out here!
[The scene shifts to the woods, where Lou and Wiggum are searching.]
Lou: Aww, let him do it, Chief. It'll lighten the mood. [Blood went into his face and he looks up] Oh, my god! That used to be a face!
[The scene shifts back to Bart staring at the walkie-talkie confused, Lisa then grabs the walkie-talkie from Bart and turns it off]
Lisa: Bart![Throws the walkie-talkie at Bart who then ducks and throws a snowball at Lisa knocking her into the lake] Help! I'm sinking in the lake!
[The park ranger arrives in overalls]
Park Ranger: You mean you're walking on the glacier.
Lisa: Whatever!... [Holds on the glacier and it sink with her and she emerges covered in seaweed with a frog on top on her head]
Bart: [to everyone] Check it out! The frog has a nerd on its butt! [The entire class and the park ranger burst out laughing and Lisa angrily walks out of the lake, passing them and they stare at her confused]
Dr. Hibbert: My housekeeper is suing me for sexual harassment. She hung up the mistletoe. What was I supposed to do?
Marge: Please lift this restraining order, Judge Harm. It's poking our family apart!
Judge Harm: Bart, do you have anything to say?
Bart: My sister has no sense of humor. I'm sure you understand. It's why you became a judge instead of finding a husband.
Judge Harm: [indignantly] I have a husband!
Bart: What is he, blind and deaf?
Judge Harm: [angrily] From now on, the restraining order is set at 200 feet! [pounds gavel]
[Everyone in the courtroom gasps, except for three European people (judging by the traditional national attire they're wearing) sitting in the back row.]
Judge Harm: That's 61 meters!
[The three Europeans gasp.]
[Looking into the backyard, Lisa sees that Bart has built a statue of her. Touched, Lisa walks over to Bart to talk to him. Fearing the poking pole, Bart cowers from Lisa until she breaks the pole in half.]
Lisa: I've realized how much I missed you. And I can see from this magnificent Lisa statue that you felt the same way.